/* ============================================================
   AI Battle Arena — server-rendered PHP pages (debates index,
   transcript, leaderboard). Self-contained, dark-first, mobile-first.
   Mirrors the React arena's gold-on-charcoal aesthetic so the PHP
   pages feel like the same product. No external deps; tokens are
   declared locally so these pages render identically regardless of
   the Next bundle.
   ============================================================ */

:root {
  --d-bg: #0c0a0e;
  --d-bg-2: #07050a;
  --d-card: rgba(247, 236, 210, 0.04);
  --d-card-2: rgba(247, 236, 210, 0.07);
  --d-border: rgba(212, 160, 23, 0.18);
  --d-border-soft: rgba(247, 236, 210, 0.12);
  --d-gold: #d4a017;
  --d-gold-light: #f5d672;
  --d-gold-strong: #ffd700;
  --d-text: #f3e6c4;
  --d-text-muted: rgba(243, 230, 196, 0.78);
  --d-text-subtle: rgba(243, 230, 196, 0.6);
  --d-gradient-gold: linear-gradient(135deg, #f5d672 0%, #d4a017 50%, #8b6914 100%);
  --d-radius: 14px;
  --d-radius-sm: 9px;
  --d-radius-full: 999px;
  --d-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  --d-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --d-font-display: "Orbitron", var(--d-font);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--d-font);
  color: var(--d-text);
  background:
    radial-gradient(1100px 600px at 50% -10%, rgba(212, 160, 23, 0.10), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(147, 51, 234, 0.08), transparent 55%),
    var(--d-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: var(--d-gold-light); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 1.25rem 1rem 4rem;
}

/* ---- Top cluster nav ---- */
.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  align-items: center;
  padding: 0.9rem 1rem;
  max-width: 880px;
  margin: 0 auto;
  border-bottom: 1px solid var(--d-border-soft);
}
.topnav .brand {
  font-family: var(--d-font-display);
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 0.82rem;
  margin-right: auto;
  background: var(--d-gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.topnav a {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--d-text-muted);
  padding: 0.3rem 0.7rem;
  border-radius: var(--d-radius-full);
  border: 1px solid var(--d-border-soft);
  background: var(--d-card);
}
.topnav a:hover { color: var(--d-text); border-color: var(--d-border); text-decoration: none; }
.topnav a[aria-current="page"] { color: var(--d-bg); background: var(--d-gold); border-color: var(--d-gold); }

/* ---- Breadcrumb ---- */
.crumbs {
  font-size: 0.74rem;
  color: var(--d-text-subtle);
  margin: 0.4rem 0 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}
.crumbs a { color: var(--d-text-muted); }
.crumbs span[aria-hidden] { opacity: 0.5; }

/* ---- Headings ---- */
.pageHead { margin: 0.5rem 0 1.5rem; }
h1.title {
  font-family: var(--d-font-display);
  font-size: clamp(1.45rem, 5vw, 2.3rem);
  line-height: 1.18;
  font-weight: 900;
  margin: 0 0 0.5rem;
  letter-spacing: 0.5px;
}
.subtitle { color: var(--d-text-muted); font-size: 1rem; margin: 0; }

.gold {
  background: var(--d-gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---- Meta row (fighters + stats) ---- */
.metaRow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.82rem;
  color: var(--d-text-subtle);
}
.metaRow .dot { opacity: 0.4; }

/* ---- Fighter badge / chip ---- */
.fighter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--d-text);
}
.badge {
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 9px;
  display: grid;
  place-items: center;
  font-family: var(--d-font-display);
  font-weight: 800;
  font-size: 0.72rem;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}
.badge.sm { width: 26px; height: 26px; font-size: 0.6rem; border-radius: 7px; }

.versus {
  font-family: var(--d-font-display);
  font-weight: 800;
  color: var(--d-gold);
  font-size: 0.8rem;
  padding: 0 0.2rem;
}

/* ---- Winner pill ---- */
.winPill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--d-radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  background: rgba(212, 160, 23, 0.16);
  color: var(--d-gold-light);
  border: 1px solid var(--d-border);
}
.winPill.draw { background: rgba(247, 236, 210, 0.08); color: var(--d-text-muted); }

/* ---- Cards / panels ---- */
.panel {
  background: var(--d-card);
  border: 1px solid var(--d-border-soft);
  border-radius: var(--d-radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--d-shadow);
}
.panel h2 {
  font-family: var(--d-font-display);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin: 0 0 0.9rem;
  color: var(--d-gold-light);
}

/* ---- Transcript turns ---- */
.round { margin-bottom: 1.75rem; }
.roundLabel {
  font-family: var(--d-font-display);
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--d-text-subtle);
  margin: 0 0 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.roundLabel::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--d-border-soft);
}

.turn {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
  align-items: flex-start;
}
.turn.right { flex-direction: row-reverse; }

.bubble {
  position: relative;
  max-width: 84%;
  background: var(--d-card-2);
  border: 1px solid var(--d-border-soft);
  border-radius: 14px;
  padding: 0.75rem 0.95rem;
}
.turn.right .bubble { border-color: var(--d-border); }
.bubble .who {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.74rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--d-text-muted);
}
.bubble .who .name { color: var(--d-text); }
.bubble .text { font-size: 0.95rem; color: var(--d-text); white-space: pre-wrap; word-wrap: break-word; }

/* per-message audio play button */
.playBtn {
  margin-left: auto;
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font: inherit;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--d-text-muted);
  background: rgba(212, 160, 23, 0.1);
  border: 1px solid var(--d-border);
  border-radius: var(--d-radius-full);
  padding: 0.18rem 0.55rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.playBtn:hover { background: rgba(212, 160, 23, 0.22); color: var(--d-text); }
.playBtn[hidden] { display: none; }
.playBtn.playing { background: var(--d-gold); color: var(--d-bg); border-color: var(--d-gold); }
.playBtn .ico { font-style: normal; }

/* ---- Verdict block ---- */
.verdict {
  background: linear-gradient(135deg, rgba(212, 160, 23, 0.1), rgba(212, 160, 23, 0.03));
  border: 1px solid var(--d-border);
}
.verdict .conclusionText { font-size: 0.98rem; color: var(--d-text); white-space: pre-wrap; }

/* ---- Vote widget ---- */
.voteWidget { display: flex; flex-direction: column; gap: 0.75rem; }
.voteBtns { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.5rem; }
.voteBtn {
  font: inherit;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--d-text);
  background: var(--d-card-2);
  border: 1px solid var(--d-border-soft);
  border-radius: var(--d-radius-sm);
  padding: 0.7rem 0.5rem;
  cursor: pointer;
  min-height: 44px;
  transition: border-color 0.15s, background 0.15s;
}
.voteBtn:hover { border-color: var(--d-border); }
.voteBtn.chosen { background: rgba(212, 160, 23, 0.18); border-color: var(--d-gold); color: var(--d-gold-light); }
.voteBtn:disabled { cursor: default; opacity: 0.92; }
.voteBar {
  height: 8px;
  border-radius: var(--d-radius-full);
  background: var(--d-border-soft);
  overflow: hidden;
  display: flex;
}
.voteBar i { display: block; height: 100%; }
.voteBar .f1 { background: var(--d-gold); }
.voteBar .f2 { background: #7c4dff; }
.voteBar .dr { background: rgba(247, 236, 210, 0.3); }
.voteCounts { display: flex; justify-content: space-between; font-size: 0.72rem; color: var(--d-text-subtle); }

/* ---- Primary CTA ---- */
.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 0.92rem;
  color: var(--d-bg);
  background: var(--d-gradient-gold);
  border: none;
  border-radius: var(--d-radius-full);
  padding: 0.8rem 1.5rem;
  cursor: pointer;
  text-decoration: none;
  min-height: 44px;
  box-shadow: 0 6px 18px rgba(212, 160, 23, 0.3);
  transition: transform 0.15s, box-shadow 0.15s;
}
.cta:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(212, 160, 23, 0.42); text-decoration: none; }
.cta.block { display: flex; justify-content: center; width: 100%; }
.cta.secondary {
  color: var(--d-text);
  background: var(--d-card-2);
  border: 1px solid var(--d-border);
  box-shadow: none;
}
.ctaRow { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 1.25rem 0; }

/* ---- Debate cards grid (index + related + leaderboard) ---- */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}
.dcard {
  display: block;
  background: var(--d-card);
  border: 1px solid var(--d-border-soft);
  border-radius: var(--d-radius);
  padding: 1rem;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}
.dcard:hover { border-color: var(--d-border); transform: translateY(-2px); text-decoration: none; }
.dcard .topic { font-weight: 700; font-size: 1rem; margin: 0 0 0.6rem; color: var(--d-text); line-height: 1.35; }
.dcard .row { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.dcard .stat { font-size: 0.72rem; color: var(--d-text-subtle); }

/* ---- Filter chips ---- */
.chips { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-bottom: 1.5rem; }
.chip {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--d-text-muted);
  background: var(--d-card);
  border: 1px solid var(--d-border-soft);
  border-radius: var(--d-radius-full);
  padding: 0.34rem 0.8rem;
  text-decoration: none;
}
.chip:hover { color: var(--d-text); border-color: var(--d-border); text-decoration: none; }
.chip.active { color: var(--d-bg); background: var(--d-gold); border-color: var(--d-gold); }

/* ---- Pagination ---- */
.pager {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.pager a, .pager span {
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.5rem 0.9rem;
  border-radius: var(--d-radius-sm);
  border: 1px solid var(--d-border-soft);
  color: var(--d-text-muted);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}
.pager a:hover { border-color: var(--d-border); color: var(--d-text); text-decoration: none; }
.pager .current { background: var(--d-gold); color: var(--d-bg); border-color: var(--d-gold); }
.pager .disabled { opacity: 0.4; }

/* ---- Leaderboard table ---- */
.lbTable { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
.lbTable th, .lbTable td { padding: 0.7rem 0.6rem; text-align: left; border-bottom: 1px solid var(--d-border-soft); }
.lbTable th {
  font-family: var(--d-font-display);
  font-size: 0.66rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--d-text-subtle);
}
.lbTable td.num, .lbTable th.num { text-align: right; font-variant-numeric: tabular-nums; }
.lbTable tr:last-child td { border-bottom: none; }
.lbTable .rank { color: var(--d-gold); font-family: var(--d-font-display); font-weight: 800; width: 2rem; }
.lbModel { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; }
.winrate { font-weight: 800; color: var(--d-gold-light); }
.tableWrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ---- Prose copy ---- */
.prose { color: var(--d-text-muted); font-size: 0.95rem; }
.prose p { margin: 0 0 0.85rem; }
.prose strong { color: var(--d-text); }
.prose ul { padding-left: 1.2rem; margin: 0 0 0.85rem; }
.prose li { margin: 0.3rem 0; }

/* ---- Empty state ---- */
.empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--d-text-subtle);
  border: 1px dashed var(--d-border-soft);
  border-radius: var(--d-radius);
}

/* ---- Footer nav ---- */
.footnav {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--d-border-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.8rem;
}
.footnav a { color: var(--d-text-muted); }

/* ---- Desktop refinements ---- */
@media (min-width: 720px) {
  .wrap { padding: 1.75rem 1.5rem 5rem; }
  .grid.two { grid-template-columns: 1fr 1fr; }
  .bubble { max-width: 78%; }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .dcard:hover, .cta:hover { transform: none; }
}